Capacitor Dilemma

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Hhchicken1-at-aol-dot-com>

Hi list, 
I am designing a small tabletop coil with a 9" by 1 3/8" secondary, wound 
with approximately 32AWG (actually 0.2mm) magnet wire. 
I will be using two stacked toroids, each 0.75" thick by 3.4" edge-to-edge.   
I'm estimating about 4.5pf for both of them together.  Wintesla gives a Fres 
of 775 kHz. 
For power I'm using a 6kV/35ma NST.  Line frequency is 50Hz. 
I will use a small triggered gap with brass electrodes (I've found the earth 
pins from UK plugs to be very effective) run from an ignition coil and a 
dimmer/cap controller that i've used in the past. 
Here's the problem:  If I use an LTR, or even resonant sized capacitor,  I 
will have to use so few primary turns that it will be sure to kill my spark 
gap!  For a decent number of primary turns, the capacitor would have to be so 
small that surely the coil would be very inefficient?  I do have about 150 
MMCs, each 0.068uF 1.6kV so I can make up pretty much any capacitor size :) 

Thanks for any help, 
Henry Hallam